close all
v=2*[-1/5 1/3];
w=[1 2/3];
v_w=v+w;
o=[0,0];

ceuArrow(o,v,'b',2);
ceuArrow(o,w,'r',2);
ceuArrow(o,v_w,'k',2);
ceuArrow(w,v_w,'b',2,':',0);
ceuArrow(v,v_w,'r',2,':',0);
axis square
grid on
axis([-1 2 -1 2])
text(v(1)-0.1,v(2)+0.1,'v');
text(w(1)+0.1,w(2)+0.1,'w');
text(v_w(1)+0.1,v_w(2)+0.1,'v+w');
xlabel('x_1');
ylabel('x_2');

